>>> 	2. when host == NULL and ai_family is not supported by the kernel,
>>> 	   EAI_FAMILY will be returned.
>>... it actually returns EAI_NONAME in this case.
>	oops i should have checked (2) more carefully.  you right.

	after a commit, getaddrinfo(3) will return EAI_NODATA in this case.
	this is the only error code getaddrinfo(3) can return.  so we need
	some special code in inetd(8) for user friendliness.

itojun